Table 3 Changes in groups A and B on subjective happiness and health-related quality of life

Subjective happiness (4 items, 1–7 scale)

Baseline

4.12 (.16)

–

–

–

–

4 weeks

4.22 (.16)

.10 (.04)

.20^b

.030

.167

12 weeks

4.26 (.16)

.14 (.04)

.27^c

.068

.209

Health-related quality of life (12 items, 0–100 scale)

 Mental component

Baseline

38.68 (1.26)

–

–

–

–

4 weeks

39.51 (1.26)

.82 (.33)

.17^d

.174

1.472

12 weeks

39.86 (1.27)

1.17 (.34)

.24^c

.518

1.834

 Physical component

Baseline

50.62 (1.04)

–

–

–

–

4 weeks

50.38 (1.04)

−.24 (.28)

−.06

−.784

.306

12 weeks

50.91 (1.05)

.29 (.28)

.07

−.263

.841